Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 21 for “"Microbial dynamics"”.
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Microbial dynamics of bioleaching consortia
… to metals have been reported for a subset of microbial species of interest, currently, minimal work has been done to quantify the negative effects of these metals when using mixed microbial communities. This information is important as mixed communities are used commercially. Understanding the …
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Physical, chemical, and microbial dynamics in the hyporheic zone
… hosting ecologically and economically important microbial processes, it is subject to dynamics in terms of inputs from the surface. In chapter 2, I explore the ways in which hyporheic zone dissolved oxygen conditions respond to surface channel flow perturbations. I show that the surface channel …
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Toward the augmentation of rumen fermentation: Deciphering microbial dynamics
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-12-04 without embargo terms
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Microbial Dynamics and Mechanistic Insights into a Hydrogenotrophic Denitrifying Microbial Consortium
… greenhouse gases (N2O and CO2). This is due to microbial competition for limited organic electron donors such as methanol and acetate. Recently, autotrophic denitrification using hydrogen as a clean electron donor, also known as “hydrogenotrophic denitrification”, has garnered increasing …
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Evaluation of microbial dynamics on low-sodium cooked bologna under different packaging conditions
… system did not have a significant effect on microbial growth. The utilization of Ion Torrent high-throughput sequencing in this study allowed the description of the total microbial community present on sliced cooked bologna. Taxonomic analysis revealed the microbial community belongs to the …
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Saproxylic Insights: Unveiling Gut Microbial Dynamics in Forest Floor Invertebrates and Their Frass in the Tallaganda Region, NSW
… Even within a well-defined and well-studied gut microbial community, little attention has been paid to how the dynamics of the host's gut environment may undergo shifts, potentially exhibiting concurrent variations along the spectrum of microbial independence within that particular …
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Fine-scale ecological dynamics of closely related marine microbes
Microbial dynamics in the environment are major drivers of global biogeochemical cycles; hence there is great interest in characterizing their rates and causes. While dynamics are affected by processes across many spatiotemporal scales, and even closely related microbes are known to vary in their …
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Understanding how microbial community contributes to wastewater treatment performance in constructed wetlands within Scotch whisky distilleries
… and biochar, analysing biofilm diversity, microbial dynamics, and biochar's impact. Additionally, it assesses seasonal treatment performance and microbial changes in CWs treating whisky wastewater. The study further evaluates pollutant removal by biochars, tests the toxicity of untreated …
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THE APPLE SCAB DILEMMA: FROM STRATEGIES TO COPE WITH Venturia inaequalis DAMAGES TO THE RISK OF THE EMERGING PATHOGEN Venturia asperata ON RESISTANT APPLE CULTIVARS
… which provided additional insights into the microbial dynamics of scab-infected fruits. Overall, this thesis contributes to a better understanding of Venturia species epidemiology and explores sustainable solutions to reduce the economic losses caused by postharvest apple scab.
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Marine microbial intact polar diacylglycerolipids and their application in the study of nutrient stress and bacterial production
… diacylglycerolipids (IP-DAGs) were used to study microbial dynamics in the surface ocean. IP-DAGs from surface ocean seawater were quantified using high performance liquid chromatography-mass spectrometry (HPLC-MS), after first developing a sensitive, high throughput molecular ion independent …
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LAND USE LEGACY REGULATES MICROBIAL COMMUNITY STRUCTURE AND FUNCTION IN TRANSPLANTED CHERNOZEMS
… agricultural influences on soil nutrients and microbial dynamics is often complicated by the heterogeneity of soil environments as well as complex interactions between confounding factors of climate, topography and hydrology. A long-term soil transplant experiment located at the Agriculture and …
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Marine microbial intact polar diacylglycerolipids and their application in the study of nutrient stress and bacterial production
… diacylglycerolipids (IP-DAGs) were used to study microbial dynamics in the surface ocean. IP-DAGs from surface ocean seawater were quantified using high performance liquid chromatography-mass spectrometry (HPLC-MS), after first developing a sensitive, high throughput molecular ion independent …
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Effect of soil structure on temporal and spatial dynamics of bacteria
… is how soil structure affects the temporal dynamics and spatial distribution of bacteria. Using repacked microcosms, the effect of bulk-density, aggregate sizes and water content on growth and distribution of introduced <i>Pseudomonas fluorescens</i> and <i>Bacillus subtilis</i> bacteria was …
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Loss of LasR function reshapes inter-species interactions in a polymicrobial cystic fibrosis airway model
… with a variety of other microbes: these are polymicrobial infections. We now know that the interactions between co-habiting Gram-negative, Gram-positive, and fungal species can significantly impact the outcomes of these airway infections. Factors like intra-species genetic variation and …
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Profiling of Microbial Communities, Antibiotic Resistance, Functional Genes, and Biodegradable Dissolved Organic Carbon in a Carbon-Based Potable Water Reuse System
… various aspects of the operation of a microbially-active carbon-based advanced treatment train producing water intended for potable reuse are examined, including fate of dissolved organic carbon, underlying microbial populations, and functional genes are explored. Further, dynamics …
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Characterisation of bacteriophage dynamics associated with foodborne pathogens
… are found in high abundance in the gut. As antimicrobial resistance rises and interest in microbiome-targeted therapies grows, phages have emerged as potential tools for precisely modulating microbial communities and treating infections. However, much remains unknown about how phages behave in …
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The oral microbiota of Irish children in health and disease: a longitudinal and cross sectional study
The oral cavity harbours a very rich and diverse microbial community. In the last decade, the oral microbiota of children and adults has been studied in detail using continuously developing DNA sequencing methods. In particular focusing on the oral microbiome changes in the presence of diseases …
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Role of Bioadditions in Sustainable Energy Production
… component of lignin, biogas production and microbial communities. While previous studies have explored bioadditives in lignocellulosic biomass degradation, the detailed mechanisms of these bioadditives, particularly yeast, in enhancing anaerobic digestion remain poorly understood. This study …
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A novel flow cytometry based methodology for rapid, highthroughput characterization of microbiome dynamics in anaerobic systems
A key challenge in studying complex microbial communities in natural, controlled and engineered environments is the development of a label-free, high throughput technique to enable rapid, in-line monitoring of the structure and function of microbiomes sensitive to perturbations. Here, a novel …
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Assessment of a Passive Sampler for Aquifer Microbial Community Profiling and Comparison of Porous Media
… aquifer depletion; however, its impact on native microbial communities remains insufficiently characterized. Concerns include the potential introduction of pathogens, antibiotic resistance genes (ARGs), and trace organic pollutants, as well as the disruption of native microbial processes critical …
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